Improvement in double-acting pumps



P. M. BARKER.

Droubl` Acting Pumps.

PatentedJun@10,1873;` M

No. 13H50.

" ir: 2@ er w13 AMmoTa-umosnAPH/c co. N. Masson/vs macfssj UNITED STATES PATENT CEEIGE.

PHILANDER M. BARKER, OF GRAND HAVEN, MICHIGAN.

y IMPROVEMENT IN DOUBLE-ACTING PUMPS.

Specification forming part of Letters Patent No. 139,650, dated J une 10, 1873; application filed March 8, 1873.

To all whom 'it may concern:

Be it known that I, PHILANDER M. BARKEE, of Grand Haven, in the county of Ottawa and State of Michigan, have invented a new and useful Improvement in Double-Acting Pumps; and I do declare that the following is a true and accurate description thereof, reference being had to the accompanying drawings and to the letters of reference marked thereon and being a part of this specilication, in which- Figure l is a vertical section ot' my pump. Fig. 2 is a perspective view ofthe diaphragm and its two valves. Fig. 3 is a bottom plan of the same without the lower segment-valve.

Like letters refer to like parts in' the several iigures.

The nature of my invention relates to an improvement in the construction of lift and force pumps, and has for its object to so arrangea pair of supplementary valves inthe cylinder, above the moving piston or bucket, and providing the latter with a hollow pistonrod which plays through the diaphragm of the supplementary valves, as that the otherwise single-acting is converted into a powerful double-acting pump without the employment of external water-ways or valves, making it peculiarly adapted for usein deep wells. The invention consists in providing the bucket of an ordinary single-actin g pump with ahollow piston-rod, and placin ga stationary diaphragm in the cylinder above the stroke ofthe bucket, through which the hollow piston-rod plays, which diaphragm is provided with peculiaryarranged valves and water-ways, communieating with the water outside the cylinder through openings made in the side of the latter, and operating in the manner more fully hereinafter set forth.

p In the drawing, A is a pump-cylinder, in the foot of which there is a check or foot valve, B, whose stem is guided by passing through the center of avspider, a, in the usual manner. C is a hollow or inverted cup-shaped piston or bucket, having a valve, D, seated in its lower part, its spindle being guided by passing through the center of a spider, b. A hollow piston-rod, E, is screwed into the top of the bucket, and to its upper end is secured the' lower end of the rod F by a bail. At a point above the stroke of the bucket, I secure in the cylinder a metallic diaphragm-plug, G, having a central opening through it, which the hollow the cylinder is cut a series of apertures, e, l which open into the segmental chamber seen atthe right halt of the plug in Fig. l. In the right half of the lower ring are cut ports or passages d, which may be closed by a seg meut-valve, H, seating itself against the under face of that halt'of the ring. In the do\vn" ward movement ofthe bucket, water is drawn' 'through the openings e, and, iowing through the portsd, tills the space between the plug and the bucket; a reverse movement of the bucket would close the valve H against the ports d. At the otherpside of the partitions c c, ports d1 are formed in the lower ring, and directly above them others, d?, in the upper part of the plug 3 these last may be closed by l a segment-valve, H', seatingrdownwardly on 1n the upward stroke of the top thereof. bucket the water contained in the cylinder between the plug and the bucket, being displaced by the latter, flows through the ports l all d2, lifting the valve El', and thence out at the top of the cylinder, or through the delivery-pipe A'. In the down-stroke of the bucket l the water below the bucket iiows up through the hollow piston-rod, and thence out of the cylinder. 1n this manner I am enabled to double the capacity of the single-acting pump.

4What I claim as my invention, and desire `to secure by Letters Patent, is-

'lhe construction and arrangement, with relation to the cylinder A and check-valve B, of the piston C, provided with the valve D and hollow piston-rod E, and the diaphragm-plug 'Gr G', provided with the partitions c c, passages d di d2, and valves H H', arranged, with relal tion to the apertures e in the cylinder, as and for the purpose set forth.

PHILANDER M. BARKER.

Witnesses: g

H. F. EBERTs, THEO. S. DAY. 

